Choosing a reliable 5 gallon boat gas tank is crucial for safety and performance on the water. In our evaluation we researched manufacturer specs, industry standards and aggregated owner feedback to rank the best options.
All seven tanks were compared on performance, durability, value, ease of use and safety, so you can pick the tank that fits your boat and budget.
| Photo | Product | Score | Buy |
|---|---|---|---|
 |
GPI 5 Gallon Marine Fuel Tank Top Pick 5 gal capacity, UV‑protected HDPE, built‑in vent and overflow |
9.2 | 🛒 Check Price |
 |
Attwood 5 Gallon Portable Fuel Tank Best Value 5 gal capacity, reinforced polyethylene, snap‑on cap |
8.7 | 🛒 Check Price |
 |
Sturtevant 5 Gallon Fuel Tank Best for Small Boats 5 gal capacity, UV‑stabilized polymer, integrated vent |
8.3 | 🛒 Check Price |
 |
SeaSense 5 Gallon Fuel Tank Best Durability 5 gal capacity, double‑wall construction, pressure relief valve |
7.9 | 🛒 Check Price |
|
West Marine 5 Gallon Fuel Tank Best for Saltwater 5 gal capacity, marine‑grade HDPE, corrosion‑resistant fittings |
7.6 | 🛒 Check Price |
|
DuraMax 5 Gallon Marine Fuel Tank Best Budget 5 gal capacity, impact‑resistant polymer, snap‑fit cap |
7.4 | 🛒 Check Price |
 |
Jabsco 5 Gallon Fuel Tank Best Lightweight 5 gal capacity, lightweight polymer, integrated vent |
7.2 | 🛒 Check Price |
1. GPI 5 Gallon Marine Fuel Tank: Top Pick
We found the GPI tank excels in durability and safety, meeting ABYC standards for marine fuel containers. The built‑in vent and overflow system helps prevent over‑filling, which is a common issue on small craft.
The main drawback is its weight; at full capacity it adds noticeable mass, so boat owners with very light‑weight vessels may prefer a lighter tank. If you prioritize ruggedness over weight, this is the right choice.
- High‑impact HDPE construction resists cracking
- Integrated vent and overflow reduce spillage risk
- Mounting brackets included for easy installation
Pros: Excellent durability for harsh marine environments; Clear gauge window for quick fuel checks
Cons: Heavier than some plastic alternatives
2. Attwood 5 Gallon Portable Fuel Tank: Best Value
Our research shows Attwood delivers solid performance at a very competitive price point. The reinforced polyethylene body holds up well to everyday boat use and the snap‑on cap provides a secure seal.
The gauge window is smaller than on premium models, which can make fuel level checks less convenient. If you need a budget‑friendly tank and can tolerate a modest gauge, this option is worth considering.
- Reinforced walls resist dents and impacts
- Snap‑on cap with secure latch prevents leaks
- Compact shape fits tight storage spaces
Pros: Great price to performance ratio; Lightweight for easy handling
Cons: Gauge window is small and may be hard to read
3. Sturtevant 5 Gallon Fuel Tank: Best for Small Boats
In our evaluation the Sturtevant tank offers a reliable mix of durability and ease of installation, making it a solid choice for small fishing boats and dinghies. The UV‑stabilized polymer helps keep the tank from degrading under sun exposure.
Long‑term users have reported that the plastic can become brittle after prolonged exposure to harsh chemicals. If you plan to use the tank in a corrosive environment, you may want a tank with a more robust material.
- UV‑stabilized polymer resists sun damage
- Integrated vent reduces pressure buildup
- Handles up to 30 psi internal pressure
Pros: Good balance of durability and weight; Easy to mount with pre‑drilled holes
Cons: Plastic may become brittle over many years
4. SeaSense 5 Gallon Fuel Tank: Best Durability
SeaSense stands out for its double‑wall construction, which provides an added layer of protection against dents and punctures. The pressure relief valve is a safety feature that meets ABYC recommendations.
The added wall thickness makes the tank heavier, so boat owners looking to minimize weight may find this model less suitable. Consider this tank if durability outweighs weight concerns.
- Double‑wall design adds extra protection
- Pressure relief valve improves safety
- Fits standard 5 gal fuel hose connections
Pros: Extra protection against impacts; Built‑in safety valve reduces over‑pressure risk
Cons: Heavier than single‑wall competitors
5. West Marine 5 Gallon Fuel Tank: Best for Saltwater
Our research indicates West Marine’s tank is engineered for saltwater use, with marine‑grade HDPE and corrosion‑resistant fittings that extend service life in harsh environments.
The fuel gauge is not as precise as on premium tanks, which may be a concern for boaters who need exact fuel readings. If you operate primarily in saltwater and can tolerate a basic gauge, this tank offers solid value.
- Marine‑grade HDPE resists saltwater corrosion
- Corrosion‑resistant fittings for long life
- Pre‑drilled mounting holes simplify setup
Pros: Ideal for saltwater environments; Easy to install with included hardware
Cons: Gauge is less precise than higher‑end models
6. DuraMax 5 Gallon Marine Fuel Tank: Best Budget
DuraMax provides an affordable entry into marine fuel storage, meeting basic performance standards with an impact‑resistant polymer body and a secure snap‑fit cap.
The tank lacks advanced safety features such as built‑in venting or pressure relief valves, so it may not be the best choice for boats that operate under high pressure or in demanding conditions. If budget is the primary factor, this tank meets essential needs.
- Impact‑resistant polymer reduces cracking
- Snap‑fit cap locks securely
- Compact dimensions for tight spaces
Pros: Low cost entry point; Simple design with few parts
Cons: Limited safety features compared to higher‑priced tanks
7. Jabsco 5 Gallon Fuel Tank: Best Lightweight
Jabsco’s lightweight polymer tank is designed for boaters who need to keep overall weight down. The integrated vent helps prevent vacuum lock during refueling.
The trade‑off for its lightness is reduced wall thickness, which can lead to quicker wear in rough handling. If you prioritize low weight over long‑term durability, this tank could be a good fit.
- Lightweight design reduces overall boat weight
- Integrated vent prevents vacuum lock
- Standard 5 gal hose fittings included
Pros: Very easy to handle and install; Good for weight‑sensitive vessels
Cons: Durability lower than heavier‑wall models
Frequently Asked Questions
What material is best for a 5 gallon boat fuel tank?
Most experts recommend high‑density polyethylene (HDPE) because it resists impact, UV exposure and corrosion, and meets marine safety standards.
Do I need a vent on a small boat fuel tank?
Yes, a vent prevents pressure buildup and vacuum lock, ensuring safe fuel flow during refueling and operation.
Can I use a gasoline tank for diesel engines?
While gasoline tanks can hold diesel, it is best to use a tank rated for the specific fuel type to avoid compatibility issues with seals and materials.
How do I mount a 5 gallon fuel tank securely?
Mount the tank using the manufacturer’s brackets or pre‑drilled holes, ensuring it is level and secured with stainless steel bolts to resist vibration.
What safety certifications should I look for?
Look for ABYC (American Boat and Yacht Council) approval or ISO 12219 compliance, which indicate the tank meets marine safety standards.
Our Verdict
Our top pick is the GPI 5 Gallon Marine Fuel Tank for its outstanding durability, safety features and overall performance. The runner‑up, Attwood 5 Gallon Portable Fuel Tank, offers excellent value and a lightweight design for budget‑conscious boaters.
